For decades, Arctic sea ice has been melting earlier in spring and freezing later in fall, extending the melt season and contributing to widespread ice loss. A new NASA-led study has found that while the Arctic melt season has lengthened dramatically since satellite records began, that trend unexpectedly stabilized around 2010. The Arctic sea ice
It was once widely believed that dinosaurs were all cold-blooded creatures, since they were classified as reptiles. But there is an increasing amount of evidence to the contrary, though scientists still don’t know the exact body temperatures of most dinosaurs. A domino in that discussion appears to have fallen, with a new study from researchers
Ukraine’s drones flew nearly 2,000 miles into northwestern Siberia to strike two Russian gas facilities, a record distance for the war, said Ukrainian special forces. The strikes on Wednesday targeted a major plant in Novy Urengoy, a gas-producing city, and another facility about 60 miles south in the Purovsky district, Ukraine’s Special Operations Forces, or
Editor’s Note: Today’s story is the answer to the July Puzzle. Call it an alluvial showdown. At the southern tip of Severny Island in the Russian Arctic, rivers descend from rugged terrain flanking a wide valley. Upon reaching flatter terrain, the waters slow down and distribute the sediments in the shape of cones called alluvial
This month, engineers at NASA’s Jet Propulsion Laboratory in Southern California are testing a spacecraft sensor that will help measure how quickly Arctic sea ice is disappearing. And although that instrument won’t launch for another year, scientists began preparing for its use during a recent field campaign in the Canadian wilderness. The researchers spent two
